anderson



(No Model.) 3 SheetsSheet 1.

0. ANDERSON & J. OLIVER.

PLOW. v No. 275,972. Patented Apr.17,1883.

WITNESSES (No Model.) 3 Sheets-Sheet Z. O. ANDERSON 815 J. OLIVER.

PLOW. No. 275,972. Patented Apr.17,1883.

Affornev N. PETERi Pnnio ubnognpker Wzsw Ian D C 3 Sheets-Sheet 3. G.ANDERSON & J. 0LIVER.-

(No Model.)

PLOW.

No. 275,972, Patented m. 17,1883.

Z W/T/VES UNITED STATES PATENT OFFICE.

CHARLES ANDERSON AND JAMES OLIVER, OF SOUTH BEND, INDIANA, ASSIGNORS TOTHE SOUTH BEND IRON WORKS, OF SAME PLACE.

PLOW.

SPECIFICATION forming part of Letters Patent No. 275,972, dated April17, 1883.

I Application filed January 25, 1833. (No model.)

To all whom it may concern:

Be it known that we, CHARLES ANDERSON and JAMES OLIVER, of South Bend,in the county of St. Joseph and State of Indiana, have invented certainnew and useful Improvements in Flows; and we do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it pertains tomake and use the same.

Our invention relates to an improvement in plows of the type furnishedwith reversible pointsandshares. Heretoforereversiblepoints have beensecured in place by means of bolts and nuts. Such forms of attachment inthis type of plows are objectionable for various reasons. In order todetach or replace a reversible point secured by a bolt and nut, the plowmust be turned bottom side up, and this necessitates detaching the teamor double-trees. Again, a wrench or hammer is necessary to unscrew thenut, and it is often the case that considerabletimeiswastedinprocuringsuch tool. Further, when the parts are new thenuts are liable to work loose and fall off the bolt while the plow is inuse and cause delay in the replacing of a new nut; or, if the nut hasremained secure for any length of time, it is liable'to rust fast on thebolt, so thatiu attempts to remove it the bolt is stripped or twistedoff.

The object of our invention is to obviate the defects and objectionablefeatures in plows provided with reversible points, as above noted, andto secure reversible points in place without the use of fastening-boltsand nuts.

A further object is to provide a reversible point and plow-standard ofsuch construction that the point may be firmly secured in place.

A further object of our invention is to provide an improved constructionof reversible plowshare.

With these ends in view our invention con- I sists in certain featuresof construction and combinations of parts, as will hereinafter beexplained, and pointed out in the claims.

In the accompanying drawings, Figure l is a view in perspective of ourimproved plow. Fig. 2 is a view in side elevation. Fig. 3 is aplanviewoftheundersideoftheplow. Figxlis a similar view with the pointremoved. Fig.

I 5 is a front view of the plow with the point removed. Fig. 6 is avertical longitudinal section', showing the devices for locking thepoint in place. Fig. 7 is a detached view of the locking-lever. theplow-point. Fig. 9 is an end view of the same. Fig. 10 is an edge viewof the share. Fig. 11 is a view in perspective of the same; and Figs. 12and 13 represent a modification.

Arepresents the standard, B the m old-board, and O the landside, theforward portion of the latter being secured within a recess, a, in thelandside ot' the standard, so that the outer surface of the landsidewill be flush with the landside b of the standard-foot D. The upper faceof the foot of the standard is formed with a groove, E, and sufficientlybroad side walls, 0 c, to afford ample bearings for the upper side ofthe reversible point. This groove extends beneath the mold-board, asshown.

F is the wing of the standard-foot, and is depressed, so as to form arear wall, f, and a side wall,f, the purpose of which will behereinafter described. The under side of the foot is also provided witha groove, F, and with side walls, 6 corresponding in width to the upperwalls, 6 e. The groove F extends rearward beneath the overlapping web G,the outer end of which connects with the landside l of the standard, andits inner end with the flange g, which constitutes a side bearing forthe plow point, and with the curved wall 9, which is formed integralwith the mold-board side g of the standard. It will thus be observedthat the web G, together with the curved wall g and the landside G ofthe standard, forms a sole for the standard and an inclosed andprotected recess, G in rear of the standard-foot. The nose of thestandard-foot is provided with an open slot, 9

The reversible point 11 is formed with correspondingly-tapercdfaces handsides It, and consists of the solid point 11, the rearwardlyprojectingflanges H and the prongs H The Fig. 8 is a view in side elevation ofinner or adjacent sides of the flanges are of 5 T form, the ribs I beingconstructed to fit within the groovesE and F in the foot of thestandard, while the flat or practically flat bearings i fitcorrespondiugly-shaped bearings on the standard-foot. The ribs I mergetogether IOG of the flange abuts against the front edge,

7", of the web G and the rear end of the 1 a J flange that is uppermostfits against thelower edge of the mold-board.

The prongs H are a continuation of the ribs I, and are provided withnotches J, each of which is beveled on opposite sides, as shown at k k.The prongs H extend into the recess G the upper prong fitting beneaththe lower edge of the mold-board, while the lower prong bears on theupper surface of the web G. From the foregoing it will be observed thatthe reversible point is insured an extended bearing of such a characteras to be prevented from accidental vertical or lateral displacement, themold-board is relieved from shocks received by the point, and theflanges of the point are prevented from spreading; and, further, thoseends are secured in a strong and most durable construction of parts. Onthe inner side of the standard are formed the lugs L L, between which ispivoted the lever M, having a T-shaped head,M,with beveled sides at m.Lever M is released in its locked position by means of the spring I. Tosecure the point in place pressure is applied to the arm m of thelocking-lever and the point forced rearward to its seat. leased,allowing the head M to engage in the notchesJ of the prongs. Owingto thebeveled faces on the sides of the notches and the head of thelocking-lever, the latter will engage the point, though the castings maynot exactly fit each other, and retain the point against longitudinaldisplacement. By this construction and arrangement of parts a point maybe reversed or replaced without turning the plow upside down ordetaching the team or doubletrees, and without the use of a wrench,hammer, or other tool. Again, the point is held firmly in place, and theemployment of bolts and nuts as fastening devices is obviated. Manychanges in the construction and form of the parts might be resorted to.The ribs on the reversible point may be semicircular, square, V-shapedin cross-section, and correspondin gly-formed grooves provided in thefoot of the standard. The ends of the flanges of the point may bebeveled, so as to fit beneath the mold-board and over the edge of theoverlapping web on the under side of the standard.

The shape of the lockinglever may be varied. Instead of having notcheson the inside of the prongs, they might be located on the outside andthe head of thelever constructed to engage therewith. Instead of using aspring, a set-screw might be inserted through the outerend of the leverand arranged so that by turning the set-screw in one direction thelocking-head would be free to move outward and release the prongs, whilea reverse move- 7 ment would force the locking-head in engage- The leveris then rement with the notches in the prongs. Many other changes in theconstruction and arrangement of parts might be resorted to withoutdeparting from the spirit of our invention.

' 0 represents the reversible share, which is made with the cutting-edge0, inwardly-inclined endso, and rear edge, 0, thelatter being preferablyof about double the thickness of the lower edge of the mold-board, andsupported in the depressed seat on the wing of the standard. The objectof making the rear edge of the share of such increased thickness is toenable it to be reversed, and also preserve the proper lines and curvesof the mold-board and share. We do not restrict ourselves to anyparticularrelative thickness of mold-board and share, as they may bevaried according to the character or type of the plow; but to insure thedesired curves and lines it is necessary to form the share of increasedthickness at its rear edge and support it in a sunken seat on the wingof the standard. Opposite sides of the share are beveled, as at P P, andbent, as shown at P in order to cause that portion of the share locatedadjacent to the point to come up even therewith and form a smoothsurface, and one that will scour when the point will.

In Figs. 12 and 13 the point is shown with its prongs only about halfthe width of the flanges, and arranged to form shoulders which abutagainst the standard, and thus relieve the thin point of the standardfrom undue strain. The prongs extend through the openings in the bracketQ, of the standard, and are retained in place by the T-head of thespringlever. This construction insures a bearing for the upper and lowerflanges of the point, which will serve to relieve the thin point of thestandard from all undue strain, both vertical and lateral.

Having fully described our invention, what we claim as new, and desireto secure by Letters Patent, is-

1. The combination, with a standard and a reversible plow'point, of aspring actuated locking-lever for securing the point againstdisplacement, substantially as set forth.

2. The combination, with a standard and a reversible plow-point havingnotched prongs or jawsadapted to be inserted through openings formed inthe standard, of a locking-lever adapted to engage in the notches ofsaid prongs orjaws, substantially as set forth.

3. The combination, with a standard and a reversible plow-point havingnotched prongs or jaws extending rearwardly from the point, and adaptedto be inserted through openings formed in the standard, of alocking-lever having its head constructed with beveled surfaces adaptedto fit the correspondingly-beveled surfaces of the notches in the prongsor jaws, substantially as set forth.

4. The combination, with a plow'standard having its foot provided withgrooves on its upper and lower sides, of a reversible plow- IIO pointconstructed with T-shaped flanges that fit within the grooves in thefoot of the stand ard, substantially as set forth.

5. The combination, with a standard having grooves formed on the upperand lower sides of its foot portion. and a web on thelower portion ofthe standard, and in rear of the grooved foot, of a reversibleplow-point adapted to fit within the groovesin the standard-foot, andprovided with prongs that extend through openings in the standard,substantially as set forth.

6. The combination, with a standard having a grooved foot and a webconstituting a sole and forming a protected recess in rear of the foot,of a reversible plow-point having prongs that extend back into saidrecess, substantially as set forth.

7. The combination, with a standard having a grooved foot, of areversible plow-point having prongs extending rearward from the ends ofthe flanges of the plow-point, the upper prong extending beneath themold-board and the lower one between the foot and a web, substantiallyas set forth.

8. The combination, with a standard provided with grooves extending backto the moldboard, of a reversible plow-point havingcorrespondingly-inclined flanges provided on their inner or adjacentfaces with ribs that extend their entire length, substantially as setforth. o

9. The combination, with the standard constructed with grooves on theupper andlower side of its foot portion and an open slot in the frontedge thereof, of a reversible plow-point provided with T-shaped flangesthat fit with-. 35 in said grooves and open slot, substantially as setforth.

10. The combination, with the standard and mold-board, of a reversibleplow-point provided with prongs that extend beneath the 40 mold-boardand in contact therewith, substantially as set forth.

1]. The combination, with the standard and reversible plow-point, of thereversible share having beveled faces on opposite surfaces at 45 itsopposite ends, substantially as set forth.

